Sheet-delivery apparatus for printing-machines



' (No Model.)

Patented Feb.v 12, 1889.

N. PETERS. Phulwl-ilhngrzphor. Wnshimflnn. D.C.

UNITED STATES PATENT OEEIcE.

WAUIER SCOTT, OF PLAlN'FlELD, NEW JERSEY,

SHEET-DELIVERY APPARATUS FOR PRINTING IVIACHINES.

SPECIFICATION forming part of Letters Patent No. 397,662, dated February 12, 1889. Application filed March 2, 1888. Serial No. 265,922. No model.)

.To all whom, it may concern:

Be it known thatI, VALTER SCOTT, of Plainfield, in the countyof Union and State of New Jersey, have invented an Improvement in Sheet-Delivery Apparatus for Printing-Machines, of which the following is a specification.

This invention is made for delivering printed sheets one upon another, so as to associate two or more sheets together previous to the folding operation, and this improvement is avail ablewith printing-presses in which the euttingcylinders separate the web of paper into two or more sheets at each revolution of the type-cylinden In the drawings, Figure 1 is a diagrammatic view representing the positions of the belts and rollers for conveying the sheets away to the respective pairs of folding-rolls. Fig. 2 1s a similar view illustrating the manner in which the sheets may be delivered between rods instead of upon the tapes, and Fig. 3 is a diagrammatic plan view illustrating the relative positions of the belts or rollers adjacent to one end of one pair of folding-rolls.

The cutting-cylinders A and B and the ranges of tapes 2 and 3 are similar to those represented in an application of like date herewith-that is to say, the ranges of tapes or belts 2 pass around the rolls 4. 5 6 7 8 9 1O 11 and the ranges of tapes or belts 3 pass around the rollers 12 13 1% 15 16 17 7 6 5; and there are two pairs of folding-rollers, F and G, and adjacent to these rolls G are the tapes and 27, the latter ranges of tapes 27 passing around the rolls 30 and 16; and adjacent to the folding-rolls F are the ranges of tapes 2 and 32, the latter passing around the rolls 33 and 3%; and there are ranges of tapes 35 around the rolls 36, 37, 34, and 8, so as to convey the sheets to the 'l'olding-rolls F from the roll 7; and the swi tub I) is actuated by the cam E and roller 21 to divert two sheets to the fol din g-rolls G and to allow the next two sheets to pass to the folding-rolls F.

My present improvements relate to the de vice for causing the second sheet to pass above the first sheet at the respective folding-rolls, so that the second sheet will not become entangled with or injured by the first sheet while the second sheet is moved along over the first sheet ready to be folded.

To carry out my present invention, 1 make use of a rock-shaft, 7 0, upon which are bars or arms 71, each terinin atin g, preferably, as short bars or rollers 72, and to this rock-shaft the proper movement is given at the right time by a cam, 75, acting upon the crank-arm 76, and I make use of similar devices in connection with the belts 2 and 32 and the folding-roll F, as with the belts 25 and 27 and foldin g-rolls G. In both instances the belts or tapes 2 and 25 are unacted upon by the arms 71, but the tapes or belts 27 and 32 are in line with the respect ive bars or rollers 72, so as to be raised or lowered by the movement of the arms and rockshaft. hen the bars or rollers 72 are not used,the arms 71 are beneath the tapes 27 or 32.

It is to be understood that the first sheet passing along is conveyed only by the belts and is not acted upon by the rollers or bars 72, such rollers or bars 72 being below the belts 25, as represented in connection with the folding-rollers G, Fig. 1, so that the first sheet passes along between and is moved by the ranges of tapes or belts 25 and 27 until it is stopped by the fence or gage 11. At this moment the cam 75 acts upon the arm 76 to raise the rollers or bars 72 and lift the belts or tapes 27, (or 32,) so that the second sheet runs up over the arms 71 and is moved along by the contact therewith of the range of belts or tapes 32, (or 27,) and the advancing end of such sheet being lifted above the rear end of the previous sheet such second sheet is carried in freely and reliably above the first sheet as it lies in position, so that the second sheet is folded along with the first sheet by a suitable blade that is brought down to fold the sheets and convey them away by the pairs of folding-rolls.

The folding ap miratns being of ordinary character, I have only represented the rollers 13 and G thereof, and I remark that the gearing or other device for giving motion to the re spective parts may be of any suitable character. An arrangement of gearing adapted to this arrangement of rollers and belts is represented in my aforesaid application of like date herewith and does not require to be repeated here.

In Fig. 2 I have represented the tapes or belts 3 as passing around the rollers 15 16 17,

as before, and the ranges of tapes as pass ing' around the rollers 17 and '72, and such rollers 72 and 16 are connected together and receive an up-and-down motion by the arm 76 and-cam 75, as before described. In this case the ranges of bars SO, 81, and are supported by a gage or [ence,-1l1, and when the roller 72 is in the position corresponding to that re n-esented in Fig. .l. as adjacent to the folding-roll G the first sheet passes in between the ranges of bars 82 and 8], and \vhenthe cam 75 has elevated the roller 72 the seeoml sheet passes in between the ranges of bars 9] and 80, and, it desired, a still Further movement might be given to the roller 72 and a third sheet be delivered upon the ranges of. bars 80, so thatall three sheets might be folded simultaneously i above the rolls, and tapes or rods for supportby a blade carrying such sheets down in between the foldii'ig-rolls G.

A device similar to those shown in Fig: 2 may be used in connection with the folding rolls F, it only being necessary to dispense with the ranges of tapes and to extend the ranges of belts or tapes to the roll 3-,, such roll 3% occupying the place of the .roll 16, as shown in Fig. 2. %y these devices the sheets are elevated so as to cause the second sheet eration of the folding mechanism.

It will be apparent that the folding-rolls may occupy the position shown by dotted lines in Fig. 1, so as to stand at right angles to the positions represented in full lines.

I claim as my invention 1. The combination, with the folding-rolls and the ranges of tapes or belts for conveyingthe sheets to and over the folding-rolls, of the rolls or bars 72, a rock-shaft for moving the same periodically and lifting the advancing end of the second sheet, and also raising the upper tapes at such rolls or bars to give the proper space for passing the second sheet freely in above the first sheet by the movement of the tapes, substantially as specified.

2. The combination, with the folding-rolls and a stationary fence for stopping the sheet ing the sheets as they pass over the foldingrolls, of lifting rolls or bars 72, for raising the advancingend of the second sheet and hold ing it up, so that it may be passed in upon the top of the first sheet, substantially as set forth.

Signed by me this 20th day ot February, 

